Read the Rules of Our Dirt Track Racing Events
Notice to All Divisions With Multiple Weight Categories!
It is the race team’s responsibility to know the rules and to claim the correct weight category. Please read through the complete rules for your division to know your weight category to claim. Our officials will try to assist you at the pill draw in understanding your weight category. However, the officials cannot know everything about your car without complete bumper tech. Our officials are not responsible if a race team is disqualified for claiming the wrong weight category!
Drivers, please remember! We do not recommend modifying your car to another weight category because you believe the other category will have an advantage. Our goal is to make all categories equal. If we find one category is dominating, weight and/or spoiler rules will be adjusted to re-equalize the categories! Corrections/adjustments may be made to the rules if necessary!
Notice Regarding Towing Hookup
All cars must have a wrecker hookup. If any car is damaged by the wrecker because of insufficient wrecker hookup, the track is NOT responsible for the damage!
** Always check periodically for any updates or changes to your classes rules **
RACEceiver 1-Way Radios Are Required in All Classes!
2022 Late Model Sportsman Rules
Frames, Body, Suspension, etc. for Late Models:
- Appearance of the Car: All competitors must present a neat and clean appearing car for any series event. Crash-damaged cars must be repaired to the minimum technical standards before returning to competition. Any car returning to the speedway without a hood must have a fan shroud in place, or it will be denied to return to competition. A technical inspector or an official may deny a car from competing if it does not meet the minimum acceptable standards as mentioned above. The series management reserves the right to deny access in competition because of sponsorship, advertisement, paint scheme, and/or lettering on a car not in “good taste” or in the spirit of keeping this a “family entertainment” sport.
- Body: The body must conform to current nationally accepted Late Model body specification rules as in Lucas Oil & World of Outlaw series. Lexan is permitted and can be used for front roof supports and side panels of the hatchback only. Roof side panels must be similar, symmetrical, and the same length on both sides of car. Sharp edges are not permitted. The body line must be a smooth, even line from front to rear.
a) Spoiler: The rear spoiler must be either Lexan or aluminum only. Spoiler may have three- (3) 18.0” long solid supports not to extend back beyond the rear edge of the spoiler. The total front surface area of the spoiler may not exceed 8.0” from the deck to the top tip of the spoiler. The spoiler may not be suspended above the deck to create a “wing effect.”
b) Nose Piece: An aftermarket nose piece is permitted within the same manufacturer line (i.e., a Ford-style nose piece must be used with a Ford engine). No wedge-type noses are permitted.
c) Bumpers: Racing type bumpers permitted.
1) Front Bumper – The front bumper may not extend beyond the outside of the nosepiece.
a) No aluminum bumpers.
2) Rear Bumper – The rear bumper may not extend more than three inches from the outside of frame rails or the ends must be rounded/radiused and directed towards the front of the car.
3) Skid rails must be tight to the body except for a kick out of skid rail permitted 18.0” in front of rear tire but may not extend past tread of any tire at any time.
4) All bumpers and rails must meet the approval of technical inspector.
d) Belly Pans – Belly pans or any type of enclosure on the bottom of the car will not be permitted. A skid plate (maximum 1/8” thickness) is permitted to protect the oil pan.
e) Wings/Tunnels – Any type of air deflection device is not permitted underneath the body and/or chassis of the car.
5) Body Lines- Deck Height 39” maximum to top of T-Bar. From the highest point of quarter panel to the highest point of front fender no more than 1” of drop or rise in the whole length of car. Straight edge across doors no more than 4.5” of drop in car at any point on the race car. This includes fenders also.
6) Nose Piece & Quarter Panel Lengths – From center of front hub to furthest point on nosepiece cannot exceed 52”. From center of rear hub to end of quarter panel cannot exceed 48”.
f) Stone Deflector – A maximum of one-(1) stone deflector for rear mounted oil pumps, oil filters, and for the main oil tank is permitted. The deflector may be constructed of steel, aluminum, or heavy gauge wire. The cover may only be mounted near the unit it is designed to protect with a maximum size of 18.0” x 18.0” and only mounted from the upper right frame rail to the lower right frame rail.
g) Rear Deck Panels – Panels of any type under the rear deck running from the front to the rear of the car will not be permitted.
h) Roof – The roof length from front to back must be a minimum of 44.0” with a maximum of 54.0”.
Quarter windows must be the same size hole on RR and LR.
i) Windshields / Window Openings: All cars must have approved protection in front of the driver in the windshield opening with a minimum of three-(3) vertical bars (no less than 3/16” in diameter). A screen for protection is also highly recommended.
j) Deck Height: 39” from ground to top of T-Bar.
k) Mounting of Components: All body components must be firmly attached to every car competing in any race. Any car may be black flagged or denied entry to start qualification or a race if any of the aforementioned items are not attached unless the technical inspector gives prior approval.
l) Repairing of Components: Body components may be repaired and must be approved by the technical inspector prior to returning to the speedway for competition. The technical inspector reserves the right to disallow a repaired car from competition that does not appear to be properly repaired. Once a body is repaired from its original form, management and the technical inspector assume no liability for any injuries that may occur as a result of this repair, regardless of the approval given to compete with that repair.
- Bolts and Fasteners: Only equivalent stock or upgraded steel fasteners and bolts may be used on the car. Fasteners may be drilled for safety wire, but intentional weight-saving modifications are not permitted. Aluminum and titanium bolts are illegal.
- Brakes: The brake system must be a conventional hydraulic type.
a) Brake Lines: Steel, aluminum, rubber, or steel-braided brake lines are permitted. Plastic is not permitted.
b) Brake Bias or Proportioning Valves: Brake bias or proportioning valves are permitted. Complete elimination of the brake by a valve at any wheel is permitted.
- Driveline/Transmission:
a) Transmissions: Aftermarket in/out boxes and aftermarket “quick change” transmission units (such as those manufactured by Bert, Brinn, Falcon, or Jerico Transmissions) are permitted.b) Driveshaft: The driveshaft must be one piece in design. The U-joints must be steel, and driveshaft must be steel, carbon fiber, or aluminum only. The driveshaft must be painted white or silver. Any other type of exotic lightweight metal driveshafts, flanges, and u-joints are not permitted.
c) Driveshaft Retainers: Must have at least one (1) 360-degree driveshaft hoops (minimum 0.25” thick and 2.0” wide) or similar. The design of the driveshaft retainer will be the sole discretion and responsibility of the driver, and the tech inspector may prohibit a car from competing in which he/she feels the driveshaft is not properly retained.
- Frame: The following measurements are minimums. Only those areas indicated will be subject to technical inspections. The top of the roll cage must be constructed high enough to cover the driver's helmeted head. No aluminum and/or soft metals are permitted.
a) The main lower frame rails must be either:
1) A minimum of 8.0” in circumference (2.0” x 2.0” box) and have a wall thickness of no less than 0.080”.
2) A tube frame design with main rails a minimum of 1.75” OD tubing with a minimum wall thickness of 0.083”. The main frame rails must extend from front bumper supports to the rear bumper supports.
3) A maximum of 25 ½ inches from the center of the ball joint to the front of the motor plate/engine bell housing flange will be permitted.
b) Roll Cage Construction: The roll bars must be a boxed frame, well braced of at least 1.5” O.D. steel pipe or tubing, with a wall thickness minimum of 0.080” DOM steel or 0.065” chrome-moly tubing allowing for manufacturers tolerance. The driver’s side must have a minimum of four protective sidebars and three protective bars on the opposite side of the cage.
c) Firewall: A metal firewall is mandatory between the driver’s compartment and the engine, as well as the driver’s compartment and rear end/fuel cell compartment.
d) Floor Pan: All cars must have a steel or aluminum floor pan under the driver, and it may be raised 9.0” to allow clearance for the header.
e) Interior: The interior of car should allow for easy access to driver from either side of car and be clear of material or construction methods that could cause injury to the driver. No raised edges inside of car.
Car must have a solid fire wall that meets approval of the technical committee.
- Fuel Cell: Any approved metal fuel cell must be used and remain securely mounted in the rear compartment of the car.
a) Fuel Straps: The fuel cell must be strapped down securely with steel straps. The straps must have a minimum of 1/8” in thickness. The mounting of the fuel cell will be the sole discretion and responsibility of the driver, and the tech inspector may prohibit a car from competing in which he/she feels the fuel cell is not securely mounted.
b) Check Valve: A check valve is mandatory on the filler pipe to prevent fuel spillage in the tank is turned over.
c) Fuel Cap: Make absolutely sure that you check the cap on your fuel cell for tightness before going onto the racetrack. The cap should fit snugly onto the cell.
d) Fuel Filters: Aftermarket fuel filters may be used. Glass fuel filters are not permitted. Filters may not be located in the driver’s compartment.
e) Fuel Pump: Electric fuel pumps are not permitted.
f) Fuel Cooling Devices: Fuel cooling devices of any kind are not permitted.
g) Fuel Lines: Any fuel lines passing through the driver’s compartment must be securely encased in steel tubing. Fuel lines may be either rubber or steel braided. Fuel lines may not be attached to or near electrical wires.
- Heim Joints: Only steel or aluminum heim joints are permitted.
- Mirrors: Mirrors are not permitted.
- Numbers: The car must have numbers of contrasting car colors from the body that are a minimum height of 18.0” and width of 4.0” on both doors and a minimum height of 24.0" and width of 6.0” on the roof. Metallic or foil numbers are not recommended and are highly discouraged. Scorers will not accept the responsibility for incorrect scoring of cars in which numbers are not clear or easily read from the control tower.
- Radios: One-way or two-way communication radios are not permitted with the exception of the mandatory track Raceiver radio on the track designated frequency only (Freq. 0000).
- Rear Ends: A Ford 9” rear end or aftermarket quick-change rear end is permitted. Rear ends may be locked by welding the spider gears. Limited slip/ratchet differentials and Trutrack type are permitted.Only OEM-type bearings are permitted. Hemispheric or similar type bearings are not permitted.
a) Rear-End Mounting: Floating type rear axle housing mounts are permitted.
b) Rear Axles: Only steel axles are permitted. Axles may be gun-drilled. Floater axles are permitted.
Crowned axles are not permitted. Steel bird cages allowed but must run on RR and LR. Steel axle tubes allowed but must run on RR and LR. Not allowed one or other. No weight permitted to be mounted on axle tubes. LR limitors must be chain style. No shock-type limitors! RR combination (tube, bell, and bird cage)must be within 2lbs of LR.
- Seats: Only approved factory-manufactured metal seats may be used. No homemade seats will be permitted. Lightening the seat by anyone else other than the factory is not permitted. Lumbar supports and head and shoulder supports on the seat are highly recommended.a) Mounting of the Seat: The seat may be moved within the driver’s compartment (remaining within the same general area as the general design) without moving or changing existing bars in the frame. The seat must be mounted directly to the frame. When mounting the seat forward, use a flat piece of steel or aluminum behind the seat (don’t just use bolts in encased tubing). The use of wood as supports or mounting brackets are not permitted. The presiding tech inspector shall have final approval of the mounting of the seat. The series management and the technical inspector assume no liability for any injuries that may occur as a result of the mounting of a seat, regardless of the approval given to compete with that seat and its location.
b) Racing Harness: All cars must have an approved type of five-(5) point racing harness (minimum 3” wide) that is equipped with a quick-release buckle unless otherwise designated. Be sure to regularly check your racing belts for damage such as fraying, tearing, etc. If this should occur, the belts should be replaced immediately. The series endorses the belt manufacturer’s recommendation that the belts be changed two (2) years after the date stamped on the SFI tag regardless of the number of times the car has been raced. The racing belts are similar to a helmet, in that they are designed for protection in only one major impact. If you have had a significant incident, the manufacturer strongly recommends immediate replacement of the belts. Also, make absolutely sure that your five-point racing harness is totally secured and that you have pulled the straps as tight as possible anytime you drive the car.
- Shocks: Only one Rebound and one compression adjustable steel or aluminum shock allowed. Shock bumpers are permitted. More than one shock per wheel is permitted. Driver adjustable shocks or driver adjustable weight jacks are not permitted. External canister gas shocks are permitted. No torsion bar suspension. No electronic adjusting is permitted.Shocks:
Shock absorbers may not contain any "internal" spring that functions as a load bearing suspension spring, "internal" coil bump spring above or below the working piston, nor "internal" bump stop of any kind. No pneumatic springs, "air" springs or "air" shocks" permitted.Only solid material bump stops permitted; rubber, urethane, and plastic. No coil spring or valve spring-type bump springs permitted. No convex disc bump spring permitted. The only nitrogen-charged parts allowed are the shock bodies themselves and must run standard conventional springs on ALL shocks. Stack springs are okay.
Springs:
1. ONLY coil springs or leaf springs will be permitted. No pneumatic springs, "air" springs, or "air" shocks permitted. No more than 2 springs per shock. Must be one on top of the other. - Suspension: (Front): Any type of upper or lower control arm may be used. Ball joint substitution is permitted. Standard 4 bar suspension on the rear end. No spring rods. No cantilever bird cages.
- Tires: Only an 11-inch Hoosier or American Racer brand tire (either Hoosier Economy or Hoosier Spec) is permitted for competition. The largest tire permitted is the Hoosier Economy 11 inch tire measuring 16.75 inches from sidewall to sidewall with a 93-inch circumference. The tires must be a 1300/D-15 Hoosier or an American Racer 44 or harder compound.a) Hardness: The composition and character of the tire may not be altered from the original. This includes soaking, softening, or recapping. If any tire is found to be below the manufacturer’s standard for that tire on the durometer, the driver may be disqualified for that event, and the tire and wheel will be confiscated immediately. That tire will be reviewed, and the driver may face further possible penalties.
The wheel will be returned to the driver. Tire warmers and any other means of artificially warming tires are prohibited. NOTE: Anyone caught using or possessing tire softener in their hauler or pit area will be subject to penalties from management. No tire soaking of any type. Tire samples will be randomly taken, and if they come back illegal, the driver has to pay the fee to have it tested and a two-race suspension from the series. Driver will not be permitted to return until his/hers fee is paid for the illegal sample.
- Traction Control Devices: No electronic or computerized wheel spin/traction control devices are permitted. Any driver caught using these devices will be suspended for a minimum of one-(1) year.
- Weight: No car shall weigh less than 2,350 lb. with the driver after any event. Weight of the car is defined as a driver in the seat, hands-on steering wheel, helmet on their head, and feet on the pedals after the event. Competitors are not permitted to fill the fuel cell with fuel after the event in order to meet the minimum weight requirements. Cars missing body components will be taken into account in terms of weight after an event. If the weight loss is excessive, the driver will be asked to supply the missing parts; otherwise, no tolerance on the weight will apply.
a) Ballast: All added ballast must be painted white with the car number marked on each piece. The weight must be visible to the technical inspector upon inspection (i.e., nothing permitted in the frame rails).
b) Mounting Ballast: The blocks must be securely mounted to the frame using a minimum of two-(2) 0.5” or larger bolts. Ballast may not be placed anywhere within the driver’s compartment, on the firewall, in the fuel cell, etc. The mounting of the ballast is subject to the final approval of the technical inspector. No ballast is permitted above the deck level.
c) Weight Shifting Devices: No devices (either mechanical, hydraulic, electric) for shifting weight are permitted.
- Wheels: Any automotive steel or aluminum wheel that has a maximum 14.0” width is permitted, excluding the beadlock are permitted. Heavy-duty wheel studs and lug nuts are highly recommended.Bleeder or relief valves are permitted in the wheels. Wheel spacers are permitted. No electronic bleeders.
a) Wheel Covers – Metal or plastic wheel covers are permitted. Must be securely fastened to wheel. Foam mud plugs are also permitted. All steel wheels or all aluminum wheels. No mixing and matching.
Aluminum wheel spacers only.
- Wheelbase: The minimum wheelbase is 103.0” with no tolerance.
Engine Specifications for Late Models:
- Engines Permitted: The engine must not exceed 362.0 cubic inches with all engine cylinders machined from steel alloy only. All factory identification numbers and/or part numbers must remain on crank and heads. Stroker-type engines are not permitted. The use of titanium for rods, rod caps, crankshafts, or headers is strictly prohibited. It is highly recommended to use a #12AN fitting or one-inch plug in the oil pan for inspection purposes. If there is not one, the oil pan must be removed for inspection. Needle-bearing camshafts, crankshafts, and rod bearings are not permitted.
- Battery: Any battery must be used and securely mounted between the frame rails. The battery may not be located in the driver’s compartment. A battery shut-off switch is mandatory and should be easily visible from outside the car and marked “on/off.”
- Block: The engine block must be a standard production block or approved stock dimension aftermarket block that was 362.0 cubic inches or less originally. No aluminum blocks. The Chevy bow-tie, Ford SVO, DART, or World Products block is permitted. Billet machined blocks or heads are not permitted. Only two-(2) valves per spark plug are permitted. Double overhead cams are not permitted. Turbine-driven, big blocks, turbos, blowers, superchargers, or offset engines are not permitted. Computer-operated or controlled parts such as fuel injections or fuel systems are not permitted. Main bearing cap must be iron or steel. The lifter bore must remain stock. Max cylinder bore is 4.060.
- Camshafts: Flat tappet camshafts only are permitted. No mushroom or roller camshafts or roller ball lifters are permitted. Gear drive units permitted. No externally adjustable cam timing device.a) Cam Bearings: Must remain as “stock” Babbitt type. Roller bearings are not permitted.
- Carburetors: A maximum of four barrels of carburetion permitted. Only one carburetor per engine is permitted. No super chargers, fuel injection, or turbo chargers.
a) The carburetors, float bowls, booster, venturi area (casting ring may be removed), butterflies, throttle shaft, and base plate may be altered.
b) The choke may be removed, but all screw holes must be permanently sealed. The choke horn may be removed.
c) The idle holes may be drilled, and the butterfly screw ends may be cut even with the shaft.
d) Carburetor jets may be changed.
e) Modifications or components to increase or restrict airflow to the carburetors (such as velocity stacks, heat deflector shields, internal modifications not listed above, etc.) are not permitted.
f) Carburetor Adapter: Only a one or two-piece aluminum or phenolic carburetor adapter may be installed between the intake manifold and carburetor. A one-piece gasket may be installed between the carburetor and adapter and between the intake manifold and adapter.
- Clutch: Must have an operational clutch and starter. A multi-disc clutch permitted. Stock configuration clutch must have a full scatter shield of at least 0.25” thick steel or an approved bell housing. Automatic transmissions are not permitted.
a) Clutch Master Cylinder: Aftermarket clutch master cylinders are permitted.
b) Clutch Lines: Rubber, steel, or steel-braided clutch lines are permitted.
- Cylinder Heads: Any factory steel cast iron cylinder head, World Products Sportsman II Steel Head with casting number must be #I037, or any bow-tie Vortec heads are permitted. The cylinder head must remain in unaltered “as cast” condition unless otherwise noted. No aluminum heads. Relocating rocker arm studs is not permitted. Ford engines may use the following cast iron cylinder heads: ProAction (part numbers 35301, 35302, or 35303); World Products Windsor Sr. (Casting #1-061); Dart Iron Eagle (casting numbers 13310010, 13410010, 13500020, or 13520020). N heads permitted.
a) All heads must have a minimum 60cc combustion chamber. The “cc” measurement of the intake runner of head must remain stock with the exception of matching port.
b) Matching ports in the intake port of head are permitted. The depth maximum for matching ports is 0.75”. The valve seat area may be cleaned up using a maximum 80-degree grinding stone. Screw-in studs, stud girdles, and guide plates are permitted.
c) Unless otherwise stated, any cylinder head with evidence of sanding, polishing, relieving, grinding, porting, angle milling, chemical treating, abrasive blasting to the original cast form will be declared illegal and penalized. O-ringing the head gasket seal area is not permitted.
d) Combustion Chamber: The combustion chamber may be altered in but must still be 60 CC.
- Crankshaft: The crankshaft must be an OEM factory production or OEM stock dimension aftermarket cast iron or steel crankshaft. No swapping of crankshafts between manufacturers. The Ford SVO crankshaft number M6303-H351 is permitted. The MOPAR high-performance crankshaft with part number P1420312 is permitted.
a) Polishing of the crank is permitted. One throw on the crank must have no balancing holes in it. The minimum weight of the crankshaft must be 45.0 lbs.
b) Stroke: The stroke must remain OEM stock as currently delivered by OEM with the exception that it may turn a maximum of 0.040” under for the replacement of bearings. Offset grinding of the crankshafts is not permitted.
c) Harmonic Balancer: Aftermarket OEM stock “type” harmonic balancers are permitted.
- Exhaust System: Any system designed to exit the car from behind is permitted. Exhaust may not exit through the side of the car. Header wrapping (tape) and ceramic coatings are permitted.
- Fuel: Racing gasoline or methanol only is permitted. All fuel must be of the same specifications, specific gravity, color, and smell of the methanol or gasoline only according to Federal Standards of Purity, Grade A or AA. No additives of any kind permitted. The track reserves the right to take specific samples of fuel at any time for testing purposes. Any additives/mixing detected in the fuel may result in a disqualification, fine, suspension, loss of purse, loss of points or any combination thereof.
a) Laboratory Testing: The series has the ability to conduct laboratory analysis of fuels. Samples for lab analysis may be taken from a competitor’s fuel system at any time at the discretion of the Technical Inspector. Laboratory results will be the final determining factor of whether illegal performance additives are present in the particular fuel sample.
b) The specific elements which will be searched for include: aldehydes, aminodiphenyl, benzene (in excess of EPA limit), benzidine, beryllium compounds, bromine compounds, butadienes, chlorinated compounds, chromates, dioxanes, ethyl acrylate, ethylene oxide, hydrazine compounds, methylene dianailine, naphthylamine, nitrogen compounds (nitromethane, et al.), styrenes, toluidine and xylidine.
Also, added to this list will be substances deemed to exceed the Threshold Limit Values (TLV) or Biological Exposure Indicies (BEI) as listed by the American Conference of Governmental Industrial Hygienists (ACGIH).
c) Penalty for Fuel Rule Violations: Any competitor (driver and/or owner) caught using any of the illegal fuel additives as previously mentioned is subject to a minimum loss of the night's points.
- Gauges: Only onboard gauges that record the following information are permitted – water temperature, lap timer, RPM, oil pressure, oil temperature, brake bias pressure and fuel pressure. Direct reading oil temperature, fuel pressure, and oil pressure gauges must use steel braided lines, not plastic or rubber. Onboard telemetry systems are not permitted.
- Ignition System: The complete ignition/starter control system must be either electronic, single-point, or dual-point distributor type ignition and may be aftermarket. Crank triggers or magnetos are not permitted.
a) Ignition Switch: The ignition switch must be within easy reach of the driver and clearly marked.
b) Spark Plugs and Wiring: Any aftermarket type wiring may be used. The electrode of the spark plug must extend into the combustion chamber.
- Intake Manifold: Any intake manifold other than a smoke ram or tunnel ram is permitted. Intake/carburetor height to be a maximum of 8.00” measured from the top of the carburetor bowl using a straight edge from the bowl to the #3 or #4 runner of the intake manifold measured from where the intake manifold meets the cylinder head (not the top of the intake runner). One or two-inch spacer permitted only two gaskets either way.
- Oil Additives: Any competitor caught using any of the following combustion enhancing additives in the engine oil will be banned from all series events for a minimum of 60 days from the date of the infraction: hydrazine, toluene, dinitrotoluene, dioxane, propylene oxide, or nitropropane.
- Pistons & Rings: Only flat-top pistons are permitted with all three piston rings in place. Zero deck piston may not extend above the block. The ring lances and lowers part (skirt) of the piston may not be altered from the original in any way. Gas Ported pistons are permitted. Floating wrist pins are permitted. Valve reliefs may be cut into the pistons.
- Radiator: Any aftermarket aluminum or copper radiator is permitted. An electric fan with a shroud is permitted. The radiator must remain in the engine compartment.
- Rocker Arms: Roller rocker arms are permitted. Rocker arm studs may not be relocated. Shaft rockers are permitted.
- Rods: A production rod from a V-8 engine under 362 cubic inches. Modification of rod length prohibited. Rods, blocks, and cranks are to be used in the same combination that factory originally manufactured. Any stock dimension steel rod (No titanium) may be substituted. Stock dimension includes length, wrist pin location, and journal size. Approved aftermarket rod must be in factory condition. No polishing or reworking. No addition or removal of metal other than normal balancing. 6-inch rods permitted in ALL engines.
- Valves: Only steel or stainless valves are permitted (no titanium). Any spring, retainer, or valve lock is permitted. Only stock OEM valve guide angle is permitted. Relocating valve guides is not permitted.
- Water Pump: Aftermarket aluminum OEM stock “type” water pumps and aluminum pulleys are permitted.
- 602/604 Crate Engines:
602 Crate no weight limit – GM crate motor part #88958602. 9.1:1 maximum compression ratio. Wet sump only. No external oil pumps. Motor must be purchased from an authorized dealer and MUST remain sealed at all times. GM factory encrypted bolts cannot be altered, removed, or changed except by an authorized repair center. Absolutely no modification of any internal engine part. All motor parts included with the motor as shipped from GM must remain OEM and may NOT be modified, including but not limited to: valve springs, push rods, harmonic balancers, rocker arms, valve covers, etc. No upgrades are allowed that may produce power via performance-enhancing methods, including breather system modifications. No machine work permitted. Any GM bolts that have been copied are considered trademark infringement and will be reported to the manufacturer for legal proceedings. Motor service or reassembly after tear down may only be performed at an authorized repair center, and motor must be resealed with GM factory encrypted bolts. All motor repairs must be done with the same GM motor parts, listed in GM book part #88958668. By using a crate motor in competition, the race team acknowledges all responsibility for the legality of the motor upon inspection at any event regardless of any previous motor verification. Open Tire Rule for all Crate Cars 604 Cate 2,200 weight: must have Fastrack, Rush, NeSmith, or factory bolts to be eligible to participate. To run this category, you must meet your sanctioning body. All crate cars body rules are the same as the rest of the field. 8-inch spoiler. No front spillboard. Open tire rule for ALL crates. - Scoring
Red MyLaps transponders are required on all cars. Rental units are available from the speedway.1.) Transponders for Late Models should be mounted on the rear side of the engine mounting plate or to the engine compartment side of the firewall but can be no less than 80" from the center nose of the car.
Shims can be used between the engine plate and mounting bracket to obtain this distance.
2). Transponders must be mounted in a vertical position pointing straight down and as close to the ground as possible. There cannot be any metal, carbon fiber, or other material that would deflect or block the signal between the transponder and the ground. Other than wiring used to connect direct powered units, the transponder should not be mounted within 12" of any device that generates, transports, or stores electric or magnetic energy (individual race cars may require a greater distance or shielding).
3.) Transponders/brackets should be riveted, wire tied, or clamped to the mounting point with additional wire ties, clamps or other securing devices encompassing the entire mounting point/bracket/transponder for additional security. Speedway is not responsible for lost/damaged transponders.
4.) Damaged/Lost units rented from Speedway are the responsibility of renter. It is each race team’s responsibility to assure that the transponder they are using is mounted properly and in working condition at all times car is on track. Changes in mounting location may only be approved by speedway officials and only in the case of transponders not reading correctly. This shall only be approved if it is determined by officials that all other possibilities and scenarios to correct the situation have been exhausted.
- Technical Procedures
A. Any competing car must be presented to the tech man or tech area upon request. Only the driver or some competent official may accompany the car during the procedure.
B. No feature will be declared official until the tech man is satisfied.
C. All technical protests must be made with the tech official within ten minutes of the completion of the race. The winner is the only car who may be protested- In order to make a protest against the winner; the protesting car must have finished in the top five and on the lead lap.
D. Any protests must be made to the proper official in an orderly and dignified manner. Protests of the winner will be allowed only if presented coherently and as the tech team sees fit. In the event of multiple protests, we will determine the order of importance and select which if any we choose to omit.
E. Fees: Protesting car must put up a $200 nonrefundable supervisory fee, additional items include $200 to pump engine, $250 per part protested, $500 to remove head, $1,500 for complete teardown.
F. Any other violation found during the inspection that was not part of the protest will still result in disqualification.
- Penalties
The technical rules contained here have been assembled with great concern toward maximizing competition and minimizing costs. Rule violations will not be tolerated. Major violations will result in disqualification, loss of points, and prize money earned. Depending on the severity and the intent of the violation, there could be a suspension from future racing activity at the speedway. Minor violations will be considered major if they are not corrected in the grace period allowed by the tech team. Any car must be presented for the scrutiny of the tech man at our request, and results will not be considered official until we are satisfied. Any claiming must be done in an orderly manner, in cash, and under the conditions previously specified. If at any time the conduct of any team member, driver, or associate becomes a discredit to the speedway, the sport, or himself, they will be removed from all racing activity at the track. Owners/ drivers are responsible for the behavior of all individuals associated with the car and may suffer similarly. These rules have been designed to facilitate the orderly conduct of and establish minimum or maximum requirements for the events. No express or implied warranty of safety shall result from publication or compliance with these regulations. Management is empowered to, at their discretion, deviate from specifications described herein. Management reserves the right to update these regulations at their discretion, in the interest of cost, safety, or fairness. Management’s interpretation of these regulations will always be considered final. Management has the right to confiscate any part deemed to be in violation of the technical rules. Any driver/ car found to be in violation of any technical/ procedural rules can have their racing privileges revoked for any length of time deemed appropriate by management.
2022 Modified Rules
All drivers are required to have a one-way radio. The one-way radio must be working and active prior to any ‘on-track’ activity. Two-way radios, crew-member to driver, and/or any other means of electronic communication, other than the one-way radio, will not be permitted.
Red MyLaps transponders are required on all cars. Rental units are available from the speedway.
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Chassis & Frame
A. Only factory production full 1965 or newer parallel American passenger car frames will be permitted. The frame must be complete in front of the firewall. Cutting of the frame in any way in front of the firewall will not be permitted.
B. The frame must remain unaltered and must meet the requirements of the attached drawing.
C. The Right-side frame rail may not be altered and/or raised and/or moved from the stock OEM location in any manner and must measure a maximum of 6” from the ground to the bottom or lowest edge of the frame rail.
D. The front cross member may be notched to allow clearance for the radiator only. 3” minimum for notching is required. The cross members must be plated to retain complete box configuration.
E. Jeep, Bronco, 4-wheel drive, front-wheel drive, or sports car frames will not be permitted.
F. The minimum wheelbase permitted will be 108”. The maximum wheelbase permitted will be 112”. No tolerance – measurements are as posted
G. Fiberglass lift bars and/or rear torsion bars will not be permitted.
H. Any frame may not be widened or narrowed and must be able to support the roll cage on both sides and must be full and complete on both sides.
I. The minimum frame and body height from ground is 4”.
J. The front bumper must be mounted to the ends of the frame with the bottom loop parallel to the ground.
K. A minimum of 1” diameter tubing and/or pipe is required to for towing of the vehicle.
L. The rear bumpers must be constructed of tubing and/or flat stock. All rear bumpers and/or tubing utilized in the fabrication of the rear bumper assembly must have an end cap. The rear bumpers must protect the fuel cell.
M. The bumper(s) (front and rear), when measured from their center(s), must have a minimum of 25” of ground clearance. There will be a 2” tolerance, plus or minus regarding this dimension. The rear bumper and/or the nerf bars must not extend beyond the width of rear tires. All bumpers must have round edges. Sharp edges on any bumper and/or bumper surface will not be permitted.
N. The brace bars forward of the roll cage must not extend higher than stock hood height.
O. The rear push bars must not extend beyond 6” of the rear quarter panel(s).
P. All side bars and bumpers must be capped on ends.
Q. The maximum overall width of the car, front and/or rear, shall not exceed 78” when measured from the outside of the tire tread on both sides of the vehicle. A maximum 1” spacer between the hub and wheel will be permitted. Steel and/or aluminum spacers will be permitted, provided the overall tread width of the vehicle does not exceed 78”.
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Body (See drawing diagram for reference – there may be dimensions referenced in the drawing diagram that are not referenced in the written rules and vice versa. All dimensions, whether written and/or referenced in the drawing diagram dimensional are rule(s)).
A. All bodies must follow dimension(s) and the appearance as shown in diagram. The body shall be the fabricated modified body from approved vendors. The body must be symmetrical, including but not limited to doors, nose, sail panels, spoiler supports, etc.
B. The front roof post must be in a straight line from top to bottom. They must be the same on both sides.
C. Sail panels must be the same design, length (top and bottom) on both sides of the car. Sail panels must be a straight line from top to bottom on the front edge. Outward bowing of the sail panel will not be permitted.
D. The sides of the engine compartment must remain open. Any side panels in the engine compartment area will not be permitted. A 5” maximum drop of the hood on either side of the hood will be permitted, and it must be enclosed at the rear of the hood. The firewall on driver’s side must meet the front of the door. The firewall must be a minimum of 16” in length from top-to-bottom.
E. The top of the doors must remain in line with the rear engine plate. The bottom of the doors may extend a maximum of 8”past the motor plate toward the front of the vehicle. Any material that exceeds 8” forward of the engine plate will not be permitted.
F. Right panel from top of door to bottom of door may not be no more than 3” and must be mounted straight inside the bottom.
G. A maximum 1” flange on the outside edges (left and right side vertically) for the purpose of strengthening only will be permitted on the front nose only. Side fins and/or flanges of any kind along the length of the entire car (hood, front, and/or roof) will not be permitted.
H. A maximum of one stone deflector, mounted only on the right side of the car, for rear mounted oil pumps, oil filters, and for the main oil tank will be permitted. The deflector may be made of steel, aluminum, or heavy gauge wire. The cover may only be mounted near the unit it is designed to protect with a maximum size of 18” square and mounted only from the upper right frame rail to the lower right frame rail.
I. The minimum roof height is 42” with a maximum height of 52”. Roof must be level from side to side.
J. The minimum deck height is 28” with a maximum height of 39”.
K. Deck height should measure within 1” from side-to-side.
L. All cars must have a car number on both sides and the roof that are at least 18” in height and 14” in width.
M. A minimum of 2” of tire clearance from the body is required.
N. The minimum ground clearance will be 4”.
O. The measurement from center of the hub to the rear top of deck will be a minimum of 34” and a maximum of 48”.
P. The maximum body width at the body’s widest part will be 72”. The minimum of width at the body’s narrowest part will be 53”. The top of the doors may have a maximum width of 67”. The bottom of the doors may have a maximum width of 68”.
Q. On the left side, the rear of the door may flare out 6” for tire clearance.
R. The bottom of the flare must be curved and rounded not pointed in any fashion.
S. The maximum rear width of car must be 67” at the widest point.
T. The maximum roof width will be 50” with a minimum of 44”.
U. The maximum roof length will be 56” with a minimum roof length of 41”.
V. The maximum height on rear roof post vertical is 3”.
W. The nose piece must not exceed 45” in width, centered between the frame rails and must not extend past the leading edge of the front bumper. The nose piece must have a minimum of 6”from the ground to the bottom edge of the nose piece.
X. The MD3 D3 Modified Aero Valance is approved.
Y. Rear spoilers of any type, including but not limited to, shaping of panels, shaping of interior body panels, shaping and/or redirecting airflow with sail panels, etc., will not be permitted.
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Interior and Driver Compartment
A. All windows must have a minimum 11” vertical opening. The entire interior must have a minimum of 11” of clearance from the interior deck to the roof and all sections of the roll cage. The minimum window opening will be 12”. The interior deck sheet metal to the right side of the driver from the back of the seat forward should be fabricated on an angle from the driveshaft tunnel to the right side window to promote ease of exit for the driver through the right side and or front window opening.
B. A master ignition switch within easy reach of the driver is mandatory. The switch must be clearly labeled “ON” and “OFF.”
C. Hydraulic and/or pneumatic weight jacks, trackers, or similar adjustable components of any type will not be permitted.
D. Mirrors of any type will not be permitted.
E. The driver’s compartment must be sealed from the engine and the race track. The rear bubble of the hood should be closed and sealed from the driver.
F. Interior decks must be flat from side to side. Interior decks may have up to a total of 6” of "rake" from the most forward part of the deck to the most rearward part of the deck as described below. Interior deck from the rear of the seat forward may be flat or have up to 3” of rake. The interior deck from the rear of the seat to the rear of the car cannot exceed 3” of rake regardless of how much rake the front portion measures. The rake of the rear portion of the interior deck must be in a straight flat line from the rear of the seat to the rear of the car.
G. Any car in competition must have right-side door bars as part of the roll cage.
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Roof & Roof Supports (see drawing diagram for reference)
A. All roofs must be full size. Half-moon roofs will not be permitted. The rear edge of the roof may not be mounted more than 12” past the rear axle. The roof must be symmetrical.
B. Wings, roof spoilers, or ground effects of any kind will not be permitted.
C. All flat-type roofs will be allowed a maximum 3” difference in height between the front of the roof and the rear of the roof. This measurement may be taken from the interior and/or the ground. The rear of the roof must maintain the same height from side to side.
D. All curved type roofs will be allowed a maximum of 5” in the front and 2” in the rear. The break in the roof must be within 6” from the center of the roof.
E. Wedge roofs will not be permitted.
F. Dished roofs will not be permitted. Roofs must be rounded side-to-side. Bead rolls will be permitted.
G. The rear roof post must begin where it meets the back edge of the roof. The rear roof supports may not extend past the front side of rear upright of the roll cage.
H. The side vents on the front roof posts may extend rear ward from the lowest point, a maximum of 16”, then at a 90-degree angle to roof for one configuration, side vents must meet the outside of the car.
I. The roof side (sail) panel window size must be 10”x 15” and must match drawing number -2- side view.
There will be a tolerance of 2” at the top and 3” at the bottom. A maximum crown of 2” will be permitted, measured from the center of a common tangent point on either side of the crown. The roof side (sail) panels must be symmetrical.
J. If the long roof side (sail) panel is being used a 1” radius will be permitted.
K. Any sun shield must be on hinge for easy exiting, taping will not be permitted. The window opening must remain at a minimum of 12”.
L. All race cars in competition must meet the measurements illustrated in the DIRTcar drawing.
M. There are only four approved roof supports to choose from.
N. The roof should be single thickness of material. The roll bar hoops must be exposed for inspection.
O. If the roof is curved, then a level will be placed on the top of the car, and if the roof is 5” or less in the front and 2” or less in the rear and the break is in the middle, then the roof will be permitted.
P. The roofs must be stock appearing. The roof must maintain the same height on both sides.
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Roll Cage
A. All cars must have a roll cage. The roll cage must be approved prior to competition, and it must be welded to the frame. The driver’s head must not protrude above the top of the roll cage with the driver’s helmet on.
B. The top of the roll cage must extend above the top of the driver’s helmet by a minimum of 1”. The entire roll cage and all roll bar pieces must be fabricated from magnetic steel a minimum of .095” in thickness.
C. The driver and right-side door bars must be parallel to the ground and located perpendicular to the driver. There must be right-side door bars. The side bars must be welded to the front and rear of the roll cage. No brazing or soldering is permitted. The door bars must have a minimum thickness of .095” and must have a minimum of 1-1/2” diameter. On the driver’s side, there will be a minimum of 3 door bars.
D. Foot protection is mandatory. One piece of magnetic steel tubing, a minimum .095” in thickness, must be fastened and/or welded across the back of the engine with vertical tubing a minimum of .095” thick.
E. The door side roll bars are mandatory and must extend into the door panels.
F. The roll cage must consist of continuous hoops that are no less than 1-1/2” in diameter and must a minimum thickness of .095”.
G. The roll cage must be mounted securely (welded) to the frame in a minimum of 6 (six) places.
H. The roll cage must consist of a configuration of front and rear hoops connected by tubing on the sides and/or side hoops. Roll cage must be securely supported and braced. Gussets to brace any portion of the roll cage will be permitted
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Safety Equipment:
Snell-rated SA2005 or SA2000 helmet required. Roll bar padding required in driver compartment. Recommended: Fire retardant padding. SFI-approved full fire suit required. Fire retardant gloves, shoes and neck brace (or head and neck restraint) required. Right and left seat head supports required if using head and neck restraint system. Recommended: Fire retardant head sock and underwear, collapsible steering shaft. Minimum 3” (2” with head restraint system) wide SFI approved five-point safety belt assembly required, must be mounted securely to main roll cage. Recommended: Safety belts no more than two years old. Kill switch required within easy reach of driver and must be clearly marked ‘OFF’ and ‘ON.’
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Electronics:
A. The following ignition boxes will not be permitted for use:
1. MSD Red 6 Box – Part Number: 6530
2. MSD Black 6 Box – Part Number: 65303
3. MSD Gold 7 Box – Part Number: 7531
4. Fast Ignition – Part Number: 307222B. Any device that changes or has the ability to change the ignition advance is not permitted.
C. All electronic and/or computerized wheel spin and/or acceleration retardation traction control devices will not be permitted. Controlled timing devices attached to or controlling accelerator or rotation of wheel will not be permitted. GPS and/or any other type of electronic tracking and/or locating device will not be permitted.
D. All traction control devices utilizing wheel sensors and/or any means of measuring ground speed to control wheel spin will not be permitted.
E. Adjustable ping control devices, dial a chip controls, timing controls, or automated throttle controls will not be permitted in cockpit or driver-accessible areas.
F. Adjustable restrictor plates will not be permitted.
G. Any remotely controlled components inside or outside the cockpit of any competitor’s racecar will not be permitted.
H. Radios or devices for transmitting voice or data will not be permitted, either in the racecar or on anyone connected with the car.
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Engine
A. Any American-made, push-rod type engine will be permitted as long as the rear of the engine bell housing flange is mounted at least 72” forward from the center of the rear axle. The engine offset must remain within 2”of the centerline from the cross member. The minimum engine height when measured from the ground to the center of the crankshaft is 11”. Other engines of the pushrod type that meet these criteria may be approved for competition.
B. All engines used in competition must be able to be used in a conventional passenger car without alteration. Alteration of motor mounts will not be permitted. Alteration of the castings and/or fittings will not be permitted. Any machine work on the outside of the engine or machine work on the front or rear of the crankshaft will not be permitted. Lightening of the engine block will not be permitted. If engine block has been lightened, 20 lb. of weight will be added in front of the motor plate.
C. Aluminum blocks will not be permitted.
D. Magnetos will not be permitted.
E. Wet sump oiling systems must be operative. Overall dry sump systems will not be permitted.
F. Alteration to the cooling system will be permitted. If alterations to the cooling system are made the stock-appearing hood line must be maintained.
G. The battery must be securely mounted and shielded. The battery must not be mounted inside the driver’s cockpit.
H. The exhaust system(s) must be mounted with the exhaust directed away from the vehicle and away from the ground. The exhaust system(s) must remain completely below the interior deck of the car. The entire exhaust system (including the exhaust pipe and/or header exits) must be inside all parts of the body. The only breach of any interior or exterior body panel that will be permitted is for routing the left side header or exhaust pipe on the left side of the car. When routing the left side header or exhaust pipe through the left side firewall a maximum of 1/2” clearance around the header or exhaust pipe will be permitted.
I. One two or four-barrel carburetor is required.
J. The engine must be a normally aspirated configuration.
K. Fuel injection systems or electric fuel pumps will not be permitted.
DC 18 Engine Option:
As an option to the current DIRTcar, UMP Modified engine rules, an approved DC18 Chevrolet Performance CT525 Engine will be permitted for use in competition in modified events providing ALL the following requirements are strictly adhered to. An approved DC18 Chevrolet CT525 Engine is defined as follows:A. Chevrolet Performance Engine, Part number GMP-19331563DC18 or GMP-19331563DC18K
B. The engine assembly MUST be obtained from the DIRTcar approved vendor.
C. Engine must have complete unaltered Chevrolet Performance engine seals installed at the time of manufacture assembly.
D. Engine must have complete unaltered secondary DIRTcar seals installed by the approved vendor prior to delivery of the engine.
E. Engine must have approved vendor seals and inventory numbers.
F. Ignition system must be controlled by an approved, pre-programmed MSD 6014CT control unit with the correct corresponding identification number for the engine being used.
G. All Engines, seals, and applicable components will be entered into a master database and must correspond to the engine being used.
H. The engine and engine components, engine seals, engine identification numbers, and the like must be used as received by the DIRTcar UMP approved vendor without modification and/or alteration of any kind.
I. All DC18 engines must use gasoline or gasoline/ethanol blends. Methanol is not approved for use with the DC18 engine.
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Transmission & Driveline
A. The driveshaft must be made from magnetic steel or approved carbon fiber. Aluminum or fiberglass driveshafts will not be permitted. The driveshaft must be painted white.
B. A 1/2” x 2” 18-gauge steel driveshaft hoop is mandatory. The driveshaft hoop must be at least 6” behind the universal joint. Two hoops are strongly recommended. A single 1/8” plate on the right side of the driveshaft tunnel s recommended.
C. All competitors are encouraged to perform systematic checks on their drive-train.
D. Direct drives and/or any type devices will not be permitted.
E. The transmission must be bolted to the engine. All cars must have forward and working reverse gears and be able to shift to forward or reverse with engine running. BERT-type transmissions will be permitted.
F. Clutch-type transmissions must be equipped with explosion-proof steel bell housing. In lieu of an explosion-proof bell housing or if one is not available for your engine, a shield of at least 1/2” x 6” covering the clutch area 360 degrees securely fastened in place and fabricated from magnetic steel will be permitted.
Suspension/Steering
Suspension/Steering designs and applications are constantly evolving. Although the intent of the suspension/steering rules is an attempt to accommodate the majority of suspension/steering and suspension/steering component designs and applications currently being used in competition, the rules cannot be absolute. Any and all new designs or modifications to an existing suspension/steering and/or suspension/steering component must be communicated to and approved by DIRTcar Racing before being used in competition. Unless otherwise specified, suspension/steering components must be manufactured using magnetic steel only. This includes but is not limited to shocks, hubs, all control arms (A-frames), axle tubes, tie rods, etc. -
Front Suspension
A. All front suspension and steering components (except the upper control arm mounts) must utilize the original O.E.M. suspension and steering component mounting holes. All mounting holes must remain a single round hole as produced by the O.E.M. Adjustable mounts and/or "slugs" will not be permitted.
B. Weight jacking bolts (wedge bolts) may be added to O.E.M. frame but must be located within 1” of the original centerline of the O.E.M. front spring location.
C. Unless otherwise specified, the front suspension components must be O.E.M. serviceable parts and originate from the same O.E.M. frame manufacturer for that application.
D. Unless otherwise approved, only O.E.M. and/or O.E.M. replacement type passenger car spindles will be permitted. Spindle O.E.M. manufacturer and model is optional. Fabricated spindles will not be permitted. Spindles must not be altered. O.E.M. spindles utilizing a removable steering arm must use the same O.E.M. steering arm originally supplied with the type and model of spindle being used or a fabricated steering arm that is an exact match (length, mounting holes, etc.). If a fabricated steering arm is used, competitors must be prepared to supply an O.E.M steering arm for an inspection comparison.**
E. The following approved multiple-piece aftermarket spindles may be used for competition.
a. Speedway Motors: 91034313, 91034501/2, 91034511
b. Afco: 1063435L/R
c. Argo manufacturing: RP-929 (AMC), Mustang II Alterations and/or relocation of the lower control arm mounts will not be permitted. Lower control arms may be O.E.M. lower control arms for the frame being used or DIRTcar approved fabricated lower control arms, which are mounted in the O.E.M. location and maintain the O.E.M. dimensions. Lower control arms must be the same length when comparing to O.E.M. right and left. The lower coil spring seat must be an integral welded component of the lower control arm. If using spherical rod ends (heim joints) as lower control arm mounts, the spherical rod ends (heim joints) must be welded to the lower control arm to prevent adjustment. Competitors must be prepared to supply an O.E.M lower control arm for an inspection comparison. All fabricated lower control arms must fit the DIRTcar/UMP lower control arm fixture(s).F. Tubular-type upper A-frames will be permitted. The upper A-frame mounting locations may be relocated. Aluminum cross shafts will be permitted.
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Steering
A. O.E.M. steering system applicable to the O.E.M. frame assembly must be used. The steering system must consist of 1 reciprocating steering gear assembly, 1 pitman arm, 1 idler arm, 1 center steering link (drag link), 2 inner tie rod ends or spherical rod ends, 2 adjusting sleeves, and 2 outer tie rod ends or spherical rod ends. Additional components, braces, rods, etc. will not be permitted.B. O.E.M. or exact fit aftermarket replacement center steering (drag) link, pitman arm, and idler arm available at auto part replacement venues will be permitted. Aftermarket components must match O.E.M. for all specifications, dimensions, and design. Only single-point round tapered mounting holes and O.E.M. tapered ball studs will be permitted. **
C. Fabricated center (drag) links, braces, etc. will no longer be permitted.
D. Steel spherical rod ends (heim joints) and fabricated magnetic steel tie rod adjusting sleeves will be permitted. 5/8" or larger spherical rod ends, and fasteners must be used. The inner rod end must connect to the center steering link using a stud that is tapered to fit the center steering link on one end with a straight 5/8" stud on the opposite end, or the center steering link may be drilled to accept a 5/8" bolt. The outer rod end may use a 5/8" grade 8 bolt with a bump steer spacer to connect to the steering arm. The O.E.M. steering arm may be drilled to accept a 5/8" bolt. Tie rod adjusting sleeves must be magnetic steel tubing.
E. The steering shaft and interior mountings may be fabricated. The steering wheel must remain on the left side of the vehicle. The steering shaft must have at least 1 universal type joint to allow shaft to "fold" under impact.
F. All steering wheels must connect to the steering shaft with an approved quick release coupler. SFI certified steering wheel couplers are highly recommended.
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Rear Suspension
A. Rear suspension configuration used on current and new chassis(s) must be the design commonly known as 4 link. Older cars currently competing with other rear suspension designs will be allowed to compete until further notification at the discretion of the Series Director.
B. The frame/roll cage structure must have integral welded mounting brackets for the attachment of rear suspension components. Frame suspension mounts may be welded or bolted securely (without any movement) to the frame/roll cage structure.
C. The only material used to fabricate frame suspension mounts that will be permitted is magnetic steel.
D. Axle Housing Mounts:
a. Aluminum birdcages will not be permitted.
b. Axle housing mounts may be a solid (welded) type or a floating type (birdcage) design.
c. Only 1 axle housing mount per side will be permitted.E. The final assembled axle housing mount must be a 1 piece mount. When a floating type mount (birdcage) is fabricated using 2 pieces, the 2 pieces must create a common 1 piece pivot (barrel). The 2 pieces must be fastened or welded together to prevent independent movement of the 2 pieces. The axle housing mount must attach directly to the axle tube with clearance only to permit rotation of the entire mount. Fore, aft or vertical movement of the mount or the axle housing within the mount will not be permitted.
F. Only 2 radius rods per side will be permitted to be connected from the axle housing mounts (birdcages) to the frame. Radius rods must be magnetic steel. Spring rods or any type of radius rods that change length dynamically are not permitted. (See Brakes 22.7.6D for floating caliper specifications)
G. Radius rods must attach to the frame brackets and to the birdcages using metal spherical rod ends or mono ball type bearings. Non-metallic bearings and or bushings will not be permitted. All mounting holes for attaching radius rods must be round and properly fit the fastener being used to prevent movement.H. Independent rear suspensions will not be permitted.
I. In regard to swing arm and/or Z-Link suspension, these suspension types are permitted. The shock on a swing arm or z-link rear suspension may mount to the bird cage or bottom radius rod. Top and bottom solid links must be mounted on heims and run in the opposite direction of bird cage.
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Springs and Shocks
A. One (and only one) coil or leaf spring per wheel must be used. Coil springs must be manufactured from magnetic steel. Rear leaf springs (if used) may be either magnetic steel or an approved composite material. All coil springs must be a minimum of 5”in diameter. Coil springs must be wound with all coils being the same O.D., I.D. from the top to the bottom of the spring. The coil spring wire diameter must be the same from the top to the bottom of the spring. Coil spacing must be equal. Round coil spring wire must be used. Coil springs with linear spring rates are the only coil springs permitted. Air springs are not permitted.
B. Front coil springs:
a. The top of the front coil spring must be closed-end and ground flat.
b. The upper front coil spring mount must be flat and support the top of the spring 360 degrees.
c. The lower end of the front coil spring must be an open end with a maximum gap of ¼” between the "tail" of the spring and the next coil.
d. The lower front coil spring mount may have a single step to prevent spring rotation and accommodate the open end of the spring. The step of the lower front coil spring mount must not exceed 1” in height. The lower coil spring mount must be a welded integral component of the lower control arm. When installed, the lower end of the front coil spring must be supported 360 degrees.C. Rear Coil Springs:
a. The top and bottom of the rear coil spring must be closed-end and ground flat.
b. The upper and lower rear coil spring mounts must support the spring for 360 degrees.
c. Rear steel coil-over eliminators and/or steel/aluminum coil-over kits will be permitted. The coil-over eliminators and/or coil-over kits must conform to the shock and spring rules.
d. Only one coil spring per wheel will be permitted.D. All rear springs must have a tethered and/or cable system in place to securely fasten them in position in the car.
E. One and only one coil spring will be permitted on the lift bar and or brake spring. Lift bar and or brake springs must be a minimum of 5” in diameter.
F. Shock and spring covers will not be permitted.
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Shocks
A. Only magnetic steel body, mono tube shocks with approved external adjustments will be permitted. Approved external adjustments are adjustments that can only be made with the shock absorber removed from the car. Remote adjusters of any type will not be permitted. Shocks must be conventional oil emulsion design. Shocks may be gas-pressurized, providing gas reservoir is an integral component of the shock body. Gas must be separated from the oil by a divider piston with a positive stop. The external portion of the shock shaft must remain exposed at all times. The lower shock "bearing" inside diameter and the shock shaft must not exceed 5/8" in diameter. Pneumatic (AIR) shocks, remote adjustable shocks, and remote gas reservoirs will not be permitted.B. Coils over shocks of any type on the front of the car will not be permitted.
C. Only one shock per wheel will be permitted. Lay down shocks less than 12” away from brake rotor will not be permitted.
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Axle Housing & Rear Differential
A. The axle housing must be of the “closed-tube” design utilizing “full floating” magnetic steel hubs and axle shafts. “Live axle”-type rear ends will not be permitted.
B. Quick change rear ends will be permitted.
C. The center section of the axle housing must be manufactured of either aluminum or magnesium.
D. Axle tubes must be 1 piece and manufactured of magnetic steel only. Axle tube internal inserts or external sleeves will not be permitted.
E. The axle tube must not exceed 3” outside diameter at any point from center section to hub.
F. Aluminum spools will be permitted.
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Tires/Wheels:
A. Only tires approved for competition are the Hoosier: M-30S and M-60 compounds in the DIRTcar plated tire 26.5/8.0/15 or 27.5/8.0/15, OR the American Racer: AR Hard or AR Xtra Hard. Maximum width of the tire will be 9”.
B. NO GROOVING allowed, siping permitted on M-30 and M-60.
C. Recapping of an approved tire is not permitted.
D. Track can confiscate any tire at any time during an event to be evaluated and analyzed, including verification using a tire durometer. Tires may also be submitted for further chemical analysis.
E. Defacing or altering any of the manufacturer’s identification markings, letters, words, and numbers, on any tire will not be permitted.
F. Tire softeners and/or chemicals designed to alter the chemical characteristics of the tire and/or the tire surface will not be permitted.
G. Bead locks will be permitted on the right side only.
H. Wheel discs shall be fastened to the wheel using a minimum of three 5/16” or three ¼ inch diameter magnetic steel hex head bolts. The use of wheel discs with any other type of fastener will not be permitted.
I. Wheel covers must not exceed 1” in thickness. Wheel covers must not exceed a 6 ½” outside diameter.
Foam type or plastic outer mud cover allowed on all wheels. Must be securely mounted.
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Brakes: Must operate at all times on all 4 wheels. Brake shut off is permitted. Calipers may be steel or aluminum single-piston OEM steel only. Steel rotors only
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Fuel System: One naturally aspirated two- or four-barrel carburetor only. No type of fuel injection allowed. Two carburetor throttle return springs are required. Mechanical or belt-driven fuel pump only.
Racing fuel cell required, maximum 32-gallon capacity, must be mounted by at least two steel straps, no less than 2” wide x 1/8” thick all the way around the cell. The use of 1”x1”x.065 wall sq. tubing is recommended. Use a minimum of two bars around the top, bottom, and sides of the fuel cell. All fuel cells must be mounted securely to the frame. No part of the fuel cell should be lower than the protective tubing. Protective tubing should be no wider than 6” on both sides of cell. Cells must have check valves, and bladders are highly recommended. Fuel cells with fuel pickup located at the top of cell ARE MANDATORY. Fuel cells with bottom feed pickups are not permitted. Retrofitting a bottom feed cell will be permissible, but bottom-feed opening must be plugged. A cap on the exposed bottom fitting will not be acceptable as plugging.
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Fuel: Gasoline or alcohol. Racing fuel allowed. NO performance-enhancing additives. Upper cylinder lube allowed with alcohol only. Fuel sample may be taken from any car at any time.
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Weight: Minimum weight limit of 2,400 pounds, no tolerance, after race with driver in car. No weights and/or loose objects in driver compartment, above interior deck, or outside body. Weights must be securely mounted to frame or roll cage and painted white with car number on it. Must be attached with at least two 0.5 inch bolts.
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Technical Procedures:
A. Any competing car must be presented to the tech man or tech area upon request. Only the driver or some competent official may accompany the car during the procedure.
B. No feature will be declared official until the tech man is satisfied.
C. All technical protests must be made with the tech official within ten minutes of the completion of the race. The winner is the only car who may be protested- In order to make a protest against the winner; the protesting car must have finished in the top five and on the lead lap.
D. Any protests must be made to the proper official in an orderly and dignified manner. Protests of the winner will be allowed only if presented coherently and as the tech team sees fit. In the event of multiple protests, we will determine the order of importance and select which, if any, we choose to omit.
E. Fees: Protesting car must put up a $200 nonrefundable supervisory fee, additional items include $200 to pump engine, $250 per part protested, $500 to remove head, $1,500 for complete teardown.
F. Any other violation found during the inspection that was not part of the protest will still result in disqualification.
-
Penalties: The technical rules contained here have been assembled with great concern toward maximizing competition and minimizing costs. Rule violations will not be tolerated. Major violations will result in disqualification, loss of points, and prize money earned. Depending on the severity and the intent of the violation, there could be a suspension from future racing activity at the speedway. Minor violations will be considered major if they are not corrected in the grace period allowed by the tech team. Any car must be presented for the scrutiny of the tech man at our request, and results will not be considered official until we are satisfied. Any claiming must be done in an orderly manner, in cash, and under the conditions previously specified. If at any time the conduct of any team member, driver, or associate becomes a discredit to the speedway, the sport, or himself, they will be removed from all racing activity at the track. Owners/ drivers are responsible for the behavior of all individuals associated with the car and may suffer similarly. These rules have been designed to facilitate the orderly conduct of and establish minimum or maximum requirements for the events. No express or implied warranty of safety shall result from publication or compliance with these regulations.
Management is empowered to, at their discretion, deviate from specifications described herein. Management reserves the right to update these regulations at their discretion, in the interest of cost, safety, or fairness. Management’s interpretation of these regulations will always be considered final.
2022 Semi-Late Rules
- General
A. Limited to any 1965 to date, domestic, rear-wheel drive, complete bodied car.
B. No Jeeps, 4wd, Station Wagons, compacts, convertibles, sports cars, sunroofs, t-tops, or trucks permitted.
C. Must remain stock wheelbase, minimum 108”.
D. Cars must remain stock except for modifications listed below. - Appearance
A. Officials reserve the right to request body or sheet metal to be replaced if it has sharp
edges or is deemed not presentable.
B. Numbering must be legible, highly visible, and in color contrasting to the car. Numbers must be located on both doors and on the roof.
C. Numbers must be minimum 18” high and any letters must be 9” high
D. It is recommended that numbers also be located on the front windshield and rear taillight area. - Frame/Chassis
A. Frame must match manufacture of body. No altering or mismatching of frames.
B. Front cross member may be altered for fuel pump.
C. No fabricated frames except for uni-body cars. If the car is manufactured without a full frame then front and rear sections must be tied together.
D. Frame rails must match the stock contours of the production model; on uni-bodied cars fabricated frame rails must have minimum 53” separation through the center of the car.
E. On uni-bodied cars only, frame may be constructed using steel rectangular tubing
only, must be at least 2” (horiz.)x 3”(vertical) x .120” thick.
1. Must start at the rear of the front stock OEM sub-frame and continue all the way to the front of the OEM rear sub-frame.
2. Springs and locating bars for rear must retain stock specifications.
3. Minimum wheelbase for uni-body cars is 110”.
F. Frame behind rear suspension may be replaced with at least 2”x3”x .095” box. - Exterior Bodies
Bodies must be stock appearing and mounted in stock location on the frame. Factory sheet metal or aftermarket body must maintain the OEM fit and appearance. No air dams, skirts, or other aerodynamic enhancements are permitted on the car. Bodies that are flat-sided or do not have stock contours or appearance are not permitted.
This is not a late model class- there will be no wedge-shaped cars, flat body panels, open rears, or late model style noses.
A. All glass lights, lenses, chrome, emblems, and grills must be removed. Hood must be secured using hood pins. Doors must be welded shut. No rub rails, outside bracing, or any sharp edges are permitted.
B. Body must be complete stock or stock appearing, all lines and bends must match OEM body.
Absolutely no slab sides. Body panels may be steel or aluminum.
C. Stock appearing plastic nose and tailpiece is permitted, must match manufacture. Rear of car must be closed in. Bottom of tail cannot be more than 3” higher than centerline of rear axle.
D. Bodies must be completely identifiable and stock appearing to their production model. Body must retain stock dimensions and curves.
E. Stock manufactures sheet metal, or aftermarket body must maintain OEM fit and appearance.
F. Spoilers permitted- 4” max height, 60” max width. Stand-alone spoiler permitted. Max height from the ground to top of spoiler is 46”. Spoiler must not extend past edge of quarter panels. No side rails.
Cars that came from the factory with a spoiler may run OEM spoiler.
G. Roof must be either factory stock or OEM replacement. Roof must match stock contours.
Roof and C pillars may be fiberglass; no flat late model type roofs permitted.
H. Must have front and rear tow hook capable of supporting the weight of the car. Cars with body panels that are not stock appearing may have weight added at the tracks discretion. - Interior
A. Cars must be gutted of all flammable material. No boxing permitted.
B. No radiators, tanks, or fluid reservoirs in driver’s compartment.
C. Stock appearing firewall is required, floor pan must be stock appearing, and must be steel.
D. No drivers adjustable weight jacks or traction control devices.
E. No mirrors or reflective devices, no radios or two-way communications.
F. Pedals, Steering Column, and seat must be in the stock location.
G. No batteries in driver’s compartment. Batteries must be securely mounted ahead of the rear axle. - Weight
A. Cars running a 358ci motor or smaller: 3,000 lb. minimum weight.
Cars running over a 358ci: 3,300 lb. minimum, with driver after the race.
B. Cars can be weighed at any time at the discretion of officials.
C. Track scales are official; it is the responsibility of the participant to ensure that car makes proper weight.
D. Any added weight must be clearly marked and secured and may be no higher than 10” from the lowest part of the frame. - Rollcage
A. Must have a full four point design (preferably built by one of the areas chassis shops).
B. Cage must be welded 360 degrees and gusseted. Cage must be securely mounted to the frame.
C. Driver’s side door must have minimum of four horizontal bars and passenger side must have minimum of three horizontal bars, gusseted and attached to the vertical door bars.
D. Seamless tubing with a minimum thickness of .095” and a minimum diameter of 1 1/2” are required.
E. Cage must be padded in all areas where the driver may come into contact.
F. No screwed type pipe fittings. Driver must have minimum 2” clearance above helmet.
G. Front bars must follow the contour of the windshield; rear bar must be behind driver.
H. Must have two bars from top of cage anchored to the frame in the rear.
I. No offset or set back cages. - Engine
A. Engine size shall not exceed 412ci.
B. Engine must match manufacturer of car.
C. Block must be a standard factory production block and naturally aspirated. No aluminum blocks. All factory ID letters and numbers must be present on blocks. No CNC lightening of blocks. Aftermarket blocks will permitted but must maintain all factory dimensions.
D. Number one or first spark plug must be in line with upper ball joint.
E. No sliding motor mounts. Solid motor mounts permitted.
F. Flat top or inverted dome pistons only. Pistons must be at zero deck height or below the deck at top dead center.
G. Crankshaft stroke must remain stock. Connecting rod length may be 5.7 or 6.0 inches. All other connecting rod dimensions must remain stock. GM block #10066034 with casting # 10051182 is acceptable. Maximum rod length for 351w ford is 6.200.
H. Car must have a stock starter and be able to start under its own power. - Heads
A. Stock OEM type cast iron heads with no altering.
B. No angle plug or high-performance heads.
C. Roller rockers permitted no stud girdles.
D. The following World Products S/R Torquer heads are permitted: GM #I-052, Ford casting # I-056. No Iron Eagle heads. Aftermarket Vortec heads ok- must be same specs as stock GM head.
E. No altering of heads is permitted. No angle milling.
F. Minimum combustion chamber volume is 60cc’s. Port matching on the head intake runner is acceptable up to a maximum depth of ¾” in from the intake manifold interface. No additional port work permitted.
G. No GM angle plug heads or aftermarket high-performance heads permitted.
H. GM Vortec heads are allowed as long as they are in stock form and were used on a production vehicle. GM Vortec pn. 25534371 and 25534351 will not be permitted. - Camshaft
A. Any make flat tappet camshaft permitted.
B. No roller type or mushroom lifters permitted.
C. Lifters must retain OEM diameter for that block. - Carburetor and Intake
A. Limited to a stock OEM two barrel, with no modifications except with possible removal of the choke plate. (Not to exceed 500cfm)
B. Stock Holley carburetor (500 cfm model 4412) is permitted. Venturi and booster dimensions will be checked with a go, no-go gauge. Throttle bore diameter may be no greater than 1.6875′′
C. Must have stock fuel pump in stock position, No electric fuel pumps.
D. Any OEM manufactured manifold of dual-plane design will be permitted.
E. The only aftermarket intakes that will be permitted are the following models: Edelbrock Performer : Chevy- 2101, 2116, 7101, 7516, Ford- 2181, 7581, Chrysler-2176, 7177 Weiand: #8023-WND, SBC: ARC-PC-2028
F. 358 ci. or smaller can use any intake manifold except tunnel ram.
G. No polishing, grinding, cutting, or porting to intake manifolds. - Ignition
A. Ignition must be stock OEM distributer and coil only.
B. No trigger systems, No Accel, MSD, or Mallory ignitions permitted.
C. HEI ignitions: coil must remain in distributer.
D. Points ignitions: coil must be stock.
E. Only one ignition per car. - Transmission, Clutch, Rear End
A. Factory stock transmission with all working gears. Automatics must use a stock operational torque converter.
B. No direct drive, Bert, or Brinn transmissions allowed.
C. No aluminum driveshafts. Driveshafts must be painted white and have a safety hoop. Safety hoop must measure minimum 6” diameter x ¼” thickness x 1” width
D. Clutch must be stock or triple disk only, no smaller than 7.25-inch diameter, and must be all steel.
E. Approved 360-degree scatter shield bell housing of at least ¼” thick steel is mandatory.
F. Any stock type production rear end acceptable. Ford 9” rear ends permitted.
G. No quick-change rear ends allowed.
H. Rear ends must be locked.
I. No internal traction control devices. - Exhaust
A. Stock manifolds or headers. Headers must have three 2” collectors for each side.
B. Header mufflers are required and must be easily seen by the tech inspector.
C. All exhaust must exit outside the car or behind the driver’s seat.
D. All exhaust must be outside of the car’s interior. Exhaust is not permitted to be directed towards the ground. Exhaust must be parallel to the ground. No 180-degree headers. - Brakes, Wheels, and Tires
A. All four wheels must have working brakes.
B. Calipers and rotors must be stock OEM steel.
C. Brake bias can be driver adjustable.
D. Right side beadlocks permitted.
E. Steel wheels only. Width not to exceed 10” diameter.
F. Oversize lugs are recommended.
G. Maximum tire size: circumference - 93”, cross-section - 16 ¾
H. Tire size and information must be clearly visible on tire.
I. American Racer 44, Hoosier 15/ 1300 or harder compound allowed. Nothing softer. All tires must meet a minimum durometer reading of 32 at any time. The track durometer is the official measuring device. - Fuel Cell
A. An approved racing cell, 32-gallon maximum, mounted securely in the trunk of car.
B. Securely mounted in a 20 gauge steel box supported by two 1/8” x 2” steel straps top and bottom to safely secure fuel cell.
C. No fuel lines inside the car unless they are encased and sealed at both ends.
D. No copper or rubber fuel line. Steel only.
E. Fuel cell vent line should have one-way inline check valve to prevent spillage.
F. Racing gasoline only. No nitrous.
G. No additives of any kinds.
H. Fuel may be tested at any time. - Suspension
A. No modifications on any suspension parts. Must hook to frame in stock position.
B. All suspension parts must remain stock for make and model of the car. Only these exceptions permitted: Non-adjustable steel racing shocks and non-adjustable racing springs with a minimum 5” diameter are permitted. No Schrader valves.
C. Top rear arms must be same length; Bottom rear arms must be same length. At any time you may be required to switch bars to other side. Arms may be adjustable up and down only.
D. Stock OEM type bushings. No mono balls.
C. Shocks may be relocated from inside of springs, limited to one shock per wheel.
E. Aftermarket panhard bars are not permitted.
F. Weight jacks are permitted. No bump stops or chains that limit suspension travel.
G. Rear leaf spring cars will be permitted as long as the body style matches the chassis.
(Ex. Camaro body style on Camaro chassis etc.) Leaf spring design may be GM or Chrysler multi-
leaf. Sliders and adjustable lowering blocks will not be allowed.
H. Other than brake bias, no other cockpit adjustable devices will be allowed.
I. On rear coil spring cars, the centerline of the spring must be within 6”, fore or aft of the centerline of the rear axle tube.
J. Tubular upper A arms permitted. Stock length for Chevy Metric frame is 8”, +or – ½”.
K. Aftermarket rear arms permitted, must be stock measurements and not adjustable. - Electronics:
No unapproved cameras, transmitting or listening devices (exception is one-way RACEceiver radio by officials), timing controls, or digital gauges (including tach). No electronic monitoring computer devices capable of storing or transmitting information, except memory recall analog tach. All electronic and/or computerized wheel spin and/or ignition retardation and/or acceleration limiting and/or traction control devices of any type will not be permitted. Adjustable ping control devices, dial a chip controls, timing controls, and/ or automated throttle controls will not be permitted. Remote control components of any type will not be permitted. - Safety
A. Aluminum, high-backed racing seat is required. Seat must be securely fastened to rollcage or frame.
B. Five-point racing harness mounted according to manufacture specifications, must not be older than three years.
C. Approved racing firesuit is mandatory. Fireproof gloves, hood, socks, shoes and underwear are recommended.
D. Full face helmet with Lexan shield – snell 05 or newer is mandatory.
E. Removable steering wheel required, racing style window net recommended.
F. Cars must contain shock-resistant roll bar padding on all bars within 18′′ of driver’s body.
G. Windshield screen, with at least three steel support bars is required.
H. Fire extinguisher, within reach of the driver and safely mounted is recommended. - Technical Procedures
A. Any competing car must be presented to the tech man or tech area upon request. Only the driver or some competent official may accompany the car during the procedure.
B. No feature will be declared official until the tech man is satisfied.
C. All technical protests must be made with the tech official within ten minutes of the completion of the race. The winner is the only car who may be protested- In order to make a protest against the winner; the protesting car must have finished in the top five and on the lead lap.
D. Any protests must be made to the proper official in an orderly and dignified manner. Protests of the winner will be allowed only if presented coherently and as the tech team sees fit. In the event of multiple protests, we will determine the order of importance and select which, if any, we choose to omit.
E. Fees: Protesting car must put up a $200 nonrefundable supervisory fee. Additional items include $200 to pump engine, $250 per part protested, $500 to remove head, $1,500 for complete teardown.
F. Any other violation found during the inspection that was not part of the protest will still result in disqualification. - Penalties
The technical rules contained here have been assembled with great concern toward maximizing competition and minimizing costs. Rule violations will not be tolerated. Major violations will result in disqualification, loss of points, and prize money earned. Depending on the severity and the intent of the violation, there could be a suspension from future racing activity at the speedway. Minor violations will be considered major if they are not corrected in the grace period allowed by the tech team. Any car must be presented for the scrutiny of the tech man at our request, and results will not be considered official until we are satisfied. If at any time the conduct of any team member, driver, or associate becomes a discredit to the speedway, the sport, or himself, they will be removed from all racing activity at the track. Owners/ drivers are responsible for the behavior of all individuals associated with the car and may suffer similarly. These rules have been designed to facilitate the orderly conduct of and establish minimum or maximum requirements for the events. No express or implied warranty of safety shall result from publication or compliance with these regulations. Management is empowered to, at their discretion, deviate from specifications described herein. Management reserves the right to update these regulations at their discretion, in the interest of cost, safety, or fairness. Management’s interpretation of these regulations will always be considered final. Management has the right to confiscate any part deemed to be in violation of the technical rules. Any driver/ car found to be in violation of any technical/ procedural rules can have their racing privileges revoked for any length of time deemed appropriate by management.
2022 Pure Stock Rules
- Cars
A. Limited to any 1965 to date, domestic, rear-wheel drive, complete bodied car.
B. No Jeeps, 4wd, Station Wagons, compacts, convertibles, sports cars, sunroofs, t-tops, or trucks permitted (this specifically excludes Mustangs, Camaros, Firebirds, etc.).
C. No former racecars permitted.
D. Cars must remain stock except for modifications listed below.
E. Minimum wheelbase is 108". - Appearance
A. Officials reserve the right to request body or sheet metal to be replaced if it has sharp edges or is deemed not presentable.
B. Numbering must be legible, highly visible, and in color contrasting to the car. Numbers must be located on both doors and on the roof.
C. Numbers must be minimum 18" high, and any letters must be 9" high
D. It is recommended that numbers also be located on the front windshield and rear taillight area. - Frame/Chassis
A. Frames must remain stock, and must match body. No altering or mismatching of frames. Frames must be intact, not rusted out. Frame rails must match the stock contours of the production frame.
B. No fabricated frames except for uni-body cars.
C. If the car is manufactured without a full frame, then front and rear sections must be tied together. Fabricated frame must rails must have minimum 53" separation through the center of the car.
D. On uni-bodied cars only, frame may be constructed using steel rectangular tubing only, must be at least 2" (horiz.)x 3"(vertical) x .120" thick.
1. Must start at the rear of the front stock OEM sub-frame and continue all the way to the front of the OEM rear sub-frame.
2. Springs and locating bars for rear must retain stock specifications.
3. Minimum wheelbase for uni-body cars is 110".
E. Chassis must maintain stock mounts and original location for motor, transmission and rear end.
F. Absolutely no chassis modifications. - Exterior Bodies
A. All glass lights, lenses, chrome, emblems, and grills must be removed. Hood must be secured using hood pins. Doors must be welded shut.
B. Body must be complete stock or stock appearing. All lines and bends must match OEM body.
Absolutely no slab sides. Body must be steel.
C. Stock appearing plastic nose and tailpiece is permitted. Must match manufacture.
D. No spoilers permitted.
E. No rub rails, outside bracing, or any sharp edges are permitted.
F. Must have front and rear tow hook capable of supporting the weight of the car.
G. Bodies must be completely identifiable and stock appearing to their production model. - Interior
A. Cars must be gutted of all flammable material. No boxing permitted.
B. No radiators, tanks, or fluid reservoirs in driver’s compartment.
C. Stock firewall is required. No holes permitted. Factory floor plans from front to rear firewall.
D. No mirrors or reflective devices, no radios or two-way communications.
E. Pedals, Steering Column, and seat must be in the stock location.
F. Batteries must be securely mounted outside of driver’s compartment and ahead of rear axle. - Weight
A. Cars must weigh 3,400 pounds, with driver after the race.
B. Cars can be weighed at any time at the discretion of officials.
C. Track scales are official. It is the responsibility of the participant to ensure that car makes proper weight.
D. Any added weight must be clearly marked and secured and may be no higher than 10" from the lowest part of the frame. - Rollcage
A. Must have a full four point design (preferably built by one of the areas chassis shops).
B. Cage must be welded 360 degrees and gusseted. Cage must be securely mounted to the frame.
C. Driver’s side door must have minimum of four horizontal bars and passenger side must have a minimum of two horizontal bars, gusseted and attached to the vertical door bars.
D. Minimum tubing thickness .095" and a minimum diameter of 1 1/2" are required.
E. Cage must be padded in all areas where the driver may come into contact.
F. No screwed type pipe fittings. Driver must have minimum 2" clearance above helmet. - Engine
A. Engine must match make and model of car.
B. Maximum engine size: Chevy 350ci, Ford 351ci, Chrysler 360ci.
C. Engine must be in stock location, no setbacks permitted.
D. No aftermarket or performance parts permitted.
E. Stock crankshaft and connecting rods. Must retain stock stroke, no stroker motors permitted. The only aftermarket crankshafts permitted are Chevy: Eagle pn. 103503480 or Scat pn. 910442. Ford: Scat 935W10 The only aftermarket connecting rods permitted are Chevy: Eagle on. 5700BBLW or Scat pn. 35700, Ford: Eagle pn. 5956 or Scat pn. 25955912.
F. Oil pans must be stock appearing.
G. Gasoline only, No alcohol or other fuel additives.
H. Starter must be operable so that the car starts under its own power.
I. Engine Claim: Winning cars engine can be claimed for $3500 plus $300 for the supervisor.
1. Driver making the claim must have finished feature in the top five and on the lead lap.
2. The track also has the right to claim engine at any time.
3. Driver being claimed must forfeit engine, refusal will result in disqualification, and the car will not be permitted to race for two events.
4. If claim is refused, $300 supervisor fee will NOT be refunded.
5. Claim must be made in cash and done so by the competing driver within ten minutes following the race.
6. Carburetor is not included in the claim.Drivers have the option of having their engine sealed by the Bedford tech man. Engines can be sealed by calling Brian at 814-327-6235. Engine that has a valid Bedford Seal can’t be claimed.
- Camshaft
A. Hydraulic cams with zero valve lash only. No solid, hydraulic roller or mechanical roller camshafts permitted.
B. Lifters must remain OEM diameter for that block. - Carburetor
A. Stock Holley 500 model 4412 only.
B. Must retain stock choke airhorns; removal of choke plate and choke shaft is permitted.
C. No predators, fuel injection, or turbos permitted. No electric fuel pumps.
D. Must use stock fuel pump in stock location. - Intake, Heads, Pistons
A. Intake manifold must remain stock.
B. Intake manifold must be OEM cast iron of 2 or 4 barrel design with no porting, polishing, machining, welding or acid etching permitted. Any adaptor or spacer may be no more than 1” thick between carburetor and intake.
C. No Bowtie or marine intakes.
D. Stock OEM cast iron heads with no modifications. No Vortec or other high-performance heads.
World Products head part # 43610-1 (assembled) or part # 43610 (bare) will be acceptable for Chevy. These World heads are commonly known as the stock replacement or”S/R” head, not the S/R Torquer. Maximum valve size for the World heads will be: 1.94” for the intake and 1.6” for the exhaust. Minimum combustion chamber size for the World heads will be 63 cc. Minimum combustion chamber size for OEM heads will be 60 cc. Stock or stock-type stamped steel rocker arms only.
E No porting, polishing, welding, acid etching or gasket matching permitted.
F. Pistons must be dish style or flat top. Zero Deck Pistons cannot be above deck. - Exhaust
A. Exhaust must be stock cast iron manifolds only.
B. Exhaust must be outside of the car interior.
C. Exhaust not permitted to be directed towards ground. Exhaust must be parallel to ground.
D. No "Ram Horn," center dump type exhaust manifolds. - Transmission, Clutch, Rear End
A. Stock OEM transmission with all working gears including reverse.
B. Must match the make and model of car.
C. Automatics must have stock torque converter and be able to shift through all gears starting in drive.
D. Must have a 360-degree steel bell housing (ex. blowproof). Must have 1” min inspection hole in bell housing.
E. Clutch must be OEM for the make and model of car and must be in the stock location
F. Clutch and flywheel must be stock dimensions and weight. No drilling or machining permitted. Stock cast iron flywheel only. Napa part # NCF88131 OR any exact stock replacement cast iron flywheel will be permitted. No lightening of flywheel.
G. No dog type or triple disc clutches permitted
H. No aluminum or exotic materials permitted in clutch or flywheel.
I. No aluminum driveshafts. Driveshafts must be painted white and have a safety hoop. Safety hoop must measure a minimum of 6" in diameter and ¼" thick x 1" wide.
J. Rear end must be OEM for make and model of car. GM 7.5 rear end only.
K. Rear ends may be locked or factory limited slip. - Ignition
A. Ignition must be stock OEM distributer and coil only.
B. No trigger systems, No Accel, MSD, or Mallory ignitions permitted.
C. HEI ignitions: coil must remain in distributer.
D. Points ignitions: coil must be stock.
E. Only one ignition per car. - Fuel Cell
A. Size: 32-gallon maximum, securely mounted in the trunk, between the frame rails and behind the rear end.
B. Cars must have a safety-approved fuel cell in a twenty (20) gauge steel box supported by two 1/8"X 2" steel straps top and bottom to safely secure fuel cell.
C. Fuel line must run under floor of car. If fuel line runs through interior, it must be encased and sealed at both ends.
D. No copper or rubber fuel line. Steel only. - Suspension
A. All suspension and steering parts must remain stock and in their original location.
Absolutely no modifications allowed. Stock OEM rubber bushings only.
B. Top rear arms must be same length; Bottom rear arms must be same length. At any time you may be required to switch bars to other side.
C. Suspension components must remain as manufactured by the auto manufacturer for the model being used. No adding of any suspension components from different models or years.
D. Stock or stock appearing springs are mandatory. Front left and right side springs must match. Rear left and right side springs must match.
E. Shimming of springs with solid metal shims permitted. No weight jacks or adjustable spacers of any kind.
F. Spring mounts must remain stock and in the stock location.
G. Stock or stock appearing shocks only. Shocks must be steel and have stock-type mounts. No racing shocks permitted. No Bilstein shocks. Stock shocks under $95 each permitted.
H. Only stock steering box permitted. No steering quickeners of any kind. - Brakes, Wheels, and Tires
A. All four wheels must have working brakes and must match year and model of car.
B. No "hung style" racing pedals, no driver-controlled brake adjusters.
C. Only 15" X 8" steel racing wheels permitted.
D. 3” offset on all corners.
E. Must have oversize lugs, reinforcing (especially of the right front) is highly recommended.
F. Following are acceptable: Hoosier 500 size 8.0-27.0-15 or American Racer 70/205-15 (Hard) / 26.5/8.0-15SW (Hard)
G. No grooving or altering of tires
H. No Beadlock wheels - Electronics:
No unapproved cameras, transmitting or listening devices (exception is one-way RACEceiver radio by officials), timing controls, or digital gauges (including tach). No electronic monitoring computer devices capable of storing or transmitting information, except memory recall analog tach. All electronic and/or computerized wheel spin and/or ignition retardation and/or acceleration limiting and/or traction control devices of any type will not be permitted. Adjustable ping control devices, dial a chip controls, timing controls, and/or automated throttle controls will not be permitted. Remote control components of any type will not be permitted. - Saftey
A. Aluminum, high-backed racing seat is required. Seat must be securely fastened to rollcage or frame.
B. Five-point racing harness mounted according to manufacture specifications, must no be older than three years.
C. Approved racing firesuit is mandatory. Fireproof gloves, hood, socks, shoes, and underwear are recommended.
D. Full face helmet with Lexan shield - snell 05 or newer is mandatory.
E. Removable steering wheel required, racing style window net recommended.
F. Cars must contain shock-resistant roll bar padding on all bars within 18′′ of driver’s body.
G. Windshield screen, with at least three steel support bars is required.
H. Fire extinguisher, within reach of the driver and safely mounted is recommended. - Technical Procedures
A. Any competing car must be presented to the tech man or tech area upon request. Only the driver or some competent official may accompany the car during the procedure.
B. No feature will be declared official until the tech man is satisfied.
C. All technical protests must be made with the tech official within ten minutes of the completion of the race. The winner is the only car who may be protested- In order to make a protest against the winner; the protesting car must have finished in the top five and on the lead lap.
D. Any protests must be made to the proper official in an orderly and dignified manner. Protests of the winner will be allowed only if presented coherently and as the tech team sees fit. In the event of multiple protests, we will determine the order of importance and select which, if any, we choose to omit.
E. Fees: Protesting car must put up a $200 nonrefundable supervisory fee, additional items include $200 to pump engine, $250 per part protested, $500 to remove head, $1,500 for complete teardown.
F. Any other violation found during the inspection that was not part of the protest will still result in disqualification. - Penalties
The technical rules contained here have been assembled with great concern toward maximizing competition and minimizing costs. Rule violations will not be tolerated. Major violations will result in disqualification, loss of points, and prize money earned. Depending on the severity and the intent of the violation, there could be a suspension from future racing activity at the speedway. Minor violations will be considered major if they are not corrected in the grace period allowed by the tech team. Any car must be presented for the scrutiny of the tech man at our request, and results will not be considered official until we are satisfied. Any claiming must be done in an orderly manner, in cash, and under the conditions previously specified. If at any time the conduct of any team member, driver, or associate becomes a discredit to the speedway, the sport, or himself, they will be removed from all racing activity at the track. Owners/ drivers are responsible for the behavior of all individuals associated with the car and may suffer similarly. These rules have been designed to facilitate the orderly conduct of and establish minimum or maximum requirements for the events. No express or implied warranty of safety shall result from publication or compliance with these regulations. Management is empowered to, at their discretion, deviate from specifications described herein. Management reserves the right to update these regulations at their discretion, in the interest of cost, safety, or fairness. Management’s interpretation of these regulations will always be considered final.Management has the right to confiscate any part deemed to be in violation of the technical rules. Any driver/ car found to be in violation of any technical/ procedural rules can have their racing privileges revoked for any length of time deemed appropriate by management.
2022 FWD Four Cylinder Rules
!!!! NO SCDRA CARS ALLOWED RUNNING IN OUR 4 CYLINDER CLASS !!!!
All cars must be stock four-cylinder front-wheel drives with no more than 180 factory-rated horsepower.
No cars newer than 2017.
Original VIN number plate must be on car and be legible; car will not be permitted to race without correct VIN plate.
The only modifications allowed in this division are to enhance driver safety. All other modifications to cars are forbidden. All components must be stock and located in their stock location. Any altering, moving, adjusting, or modifying on cars is forbidden.
- Eligibility
This is an entry-level division to introduce newcomers to the sport at a moderate expense level. Those reaching a particular ability level will not be welcome in this division. That level is defined as those whose resume includes any TWO of the following Bedford accomplishments:
A.) Over 100 feature starts
B.) 25 feature wins
C.) Three track championships
D.) Success in a higher class.This division is a novice division and intended ONLY for those at that ability level. - Rollcage
A. All cars must have a four-point rollcage with three-door bars on the left side and two-door bars on the right side.
B. All bars must be welded 360 degrees and gusseted. Roll cage must be securely fastened to the floor via plating and gussets, or by constructing a box frame welded to the floor to serve as a foundation for the roll cage.
C. Front bars must follow the contour of the windshield.
D. All tubing must be a minimum of 1 1/2"x .095".
E. Driver must have 2" of clearance above helmeted head. - Body
A. Windshield must be removed and replaced with a full screen with two 2" x 1/8" straps in center.
B. All glass and plastic must be removed.
C. All doors and trunks must be bolted or welded shut. Front hood pins are recommended.
D. Numbering must be legible, highly visible, and contrasting to car. Numbers must be 18" high. Any letters must be 9" high. Numbers must be easy to read.
E. Body must remain stock. No body altering or non-factory spoilers.
F. Must have front and rear tow hook capable of supporting the weight of the car. ($25 fine if car has to be towed and tow hook is missing.) - Interior
A. All interiors must be removed except for the dash, which is optional.
B. Bars within drivers reach must be padded.
C. No metal panels may be removed.
D. All holes in firewall must be covered with metal.
E. No boxing of interior
F. No rearview mirrors allowed. - Engine
A. Four cylinder, non-turbo engine.
B. No VTEC Motors permitted.
C. Engine size and model must have been available as original factory option for that car. No swapping of engine makes. i.e. Acura to Honda, etc.
D. Must use stock exhaust manifold.
E. Batteries can be relocated to the rear of the car (but in front of the rear axle), but must be enclosed and sealed in a steel battery box. The battery box must be securely mounted to the floor.
F. Engine and all components must remain stock. Engine mounts can be reinforced but must remain with the stock rubber and must function as stock. No solid mounting. - Suspension
A. No altering of any suspension components.
B. All parts must remain stock, and in factory location.
C. All parts and components must be in good condition. - Brakes
A. All four wheels must have properly operating breaks.
B. No three-wheel setups or modifications.
Wheels and Tires
- Wheels must be stock steel wheels or stock aluminum wheels. NO RACING WHEELS ALLOWED !!!!!
A. 13" or 14" wheels only. 15" wheels will be acceptable if it was a factory size for the model being run.
B. Steel wheels only. All four wheels must be the same.
C. Right front wheel may be reinforced, but stock dimensions may not be changed.
D. Must have oversize lug nuts.
E. Tires must be DOT approved.
F. No winter or rough tread tires.
G. No grooving or altering of tires.
H. All four tires must be the same size - Weight
A. Minimum total wait for all cars is 2,500 lb.
B. Weight is measured with driver and all safety equipment after the race. Track scales are final.
C. Maximum amount of weight on the left side is 55%.
D. After fourth feature win, 50 lb. weight will be added for each succeeding feature win. That weight must remain for the remainder of the season.
E. Any added weight must be clearly marked and secured. Location of weight to be determined by the tech inspector - Safety
A. Must have an aluminum racing seat with headrest.
B. Must have a five-point quick release racing harness. Harness must be snell approved and no older than three years. Harness must be securely attached.
C. Approved firesuit, socks and gloves are mandatory. Fireproof hood and shoes are recommended.
D. Full face helmet with Lexan shield snell 05 or newer is mandatory.
E. Window net with latches accessible from outside the car is mandatory. F. Fire extinguisher, within reach of the driver and safely mounted is mandatory.
G. Must have a collapsible steering shaft (from factory).
H. Removable steering wheel is mandatory. Wheel must have a racing quick release.
I. Recommended that driver’s door bar be plated with 1/8" aluminum or steel.
J. Fuel cells are recommended, but if not used, fuel tank must have a skid plate.
K. If stock fuel tank is used stock fuel pump must be used. If fuel cell is used only one fuel pump producing stock fuel pressure may be used.
M. Any car may be refused the opportunity to race if safety equipment is deemed unsafe. - Car Claim
A. After its FOURTH win of the year, the featured winning car may be claimed for $1,500.00
B. Any car may be claimed by the speedway at any time.
C. Claim must be made no longer than ten minutes after the feature race.
D. Driver making a claim must have finished in the top five of the feature.
E. Claims carry a $300.00 supervisor’s fee that is non-refundable regardless of outcome of claim. Total claim amount must be given to track official at time of claim.
F. Competitor must forfeit their car, as it was when the race finished. Only safety items (seat, belts, window net, and fire extinguisher) may be removed.
G. If competitor refuses the claim, claimed car will be disqualified, and will not be permitted to race the following four events. ($300.00 fee will not be refunded) - Technical Procedures
A. Any competing car must be presented to the tech man or tech area upon request. Only the driver or some competent official may accompany the car during the procedure.
B. No feature will be declared official until the tech man is satisfied.
C. All technical protests must be made with the tech official within ten minutes of the completion of the race. The winner is the only car who may be protested- In order to make a protest against the winner; the protesting car must have finished in the top five and on the lead lap.
D. Any protests must be made to the proper official in an orderly and dignified manner. Protests of the winner will be allowed only if presented coherently and as the tech team sees fit. In the event of multiple protests, we will determine the order of importance and select which if any we choose to omit.
E. Fees: Protesting car must put up a $200 nonrefundable supervisory fee, additional items include $200 to pump engine, $250 per part protested, $500 to remove head, $1,500 for complete teardown.
F. Any other violation found during the inspection that was not part of the protest will still result in disqualification. - Penalties
The technical rules contained here have been assembled with great concern toward maximizing competition and minimizing costs. Rule violations will not be tolerated. Major violations will result in disqualification, loss of points, and prize money earned. Depending on the severity and the intent of the violation, there could be a suspension from future racing activity at the speedway. Minor violations will be considered major if they are not corrected in the grace period allowed by the tech team. Any car must be presented for the scrutiny of the tech man at our request, and results will not be considered official until we are satisfied. Any claiming must be done in an orderly manner, in cash, and under the conditions previously specified. If at any time the conduct of any team member, driver, or associate becomes a discredit to the speedway, the sport, or himself, they will be removed from all racing activity at the track. Owners/ drivers are responsible for the behavior of all individuals associated with the car and may suffer similarly. These rules have been designed to facilitate the orderly conduct of and establish minimum or maximum requirements for the events. No express or implied warranty of safety shall result from publication or compliance with these regulations. Management is empowered to, at their discretion, deviate from specifications described herein. Management reserves the right to update these regulations at their discretion, in the interest of cost, safety, or fairness. Management’s interpretation of these regulations will always be considered final.
Management has the right to confiscate any part deemed to be in violation of the technical rules. Any driver/ car found to be in violation of any technical/ procedural rules can have their racing privileges revoked for any length of time deemed appropriate by management.
2022 Enduro Rules
**** If you have previously raced in ANY other class other than enduros you are not permitted to race in the enduro class for the 2022 racing season at Hesston Speedway****
**** $ 25.00 Entry Fee ****
**Highly Recommend a Rollover Bar**
- Drivers must have a valid driver’s license to race in this event. Any participant under the age of 18 must have a parental release form.
- Each race will be 50 laps.
- Each driver must provide their own scoring spotter. If you do not have your own scorer, you will not be allowed to compete in the race. Scorers are a very important part of the race, so it is highly recommended that the spotter be at least 16 years of age.
- Entry fee is $25 per car registration fee. Pit passes are $28 per person which is in addition to the registration fee.
- Fire retardant jackets and gloves are required!
- MANDATORY! ALL vehicles running rear-wheel drive must have driveshaft loop bolted or welded.
- Any 1960 or newer 2 or 4 door car is eligible. NO convertibles. Front driveshaft can be removed to run. The only trucks allowed are ½ ton or smaller 2 door pickups. Cars may be rear or front-wheel drive. 4, 6, or 8 cyl. Engines are ok. ALL ENGINES MUST BE COMPATIBLE TO THE YEAR AND MODEL OF VEHICLE BEING DRIVEN. IF CAR CAME WITH SEVERAL ENGINE OPTIONS, YOU ARE ALLOWED TO USE ANY ONE OF THOSE OPTIONS. IF A 4 CYLINDER VEHICLE ONLY CAME IN A 4 CYLINDER, YOU CAN’T PUT A V6 IN IT. NO TURBOS. Minimum stock wheelbase allowed is 102 inches for v8 and 88 inches for V6 or a 4 cylinder.
- Roll cage is optional but highly recommended. Gutting of factory interior panels allowed. ALL doors must be braced with door bars for reinforcement. Any area where panels have been removed must be covered with foam material to prevent possible injury.
- All doors and tailgates must be welded, chained, or bolted shut.
- NO bracing in the bumper areas. Bumpers need to be chained or called as a safety item to help retain the bumper.
- Racing approved shoulder harness and lap belts are recommended. Racing seats are permitted.
- Car & Body: ABSOLUTELY NO RACE CARS ALLOWED IN THIS EVENT! This is to include ANY car running in any division at any race track in the PAST OR PRESENT! This race is for STRICTLY STOCK CARS ONLY!!!
- MANDATORY – 3 bars (3/8 inch) in front of driver in place of windshield
- All glass from windows must be removed from the vehicle. Window safety nets are MANDATORY!
- All sunroofs must be covered.
- The rear seat shelf must be let in as a fire stop, and any openings to the trunk area must be enclosed with sheet metal and secured by rivets or screws!
- Complete bumper-to-bumper steel frame and uni-body must be retained. NO lightening permitted,
- All stock steel unaltered floor pans, firewalls, trunk, and wheel wells must be retained.
- Cars must retain their strictly stock appearance, no cutting, chopping, channeling or shortening permitted. Hoods must be kept in place at all times. Front hood pins are mandatory.
- Gas tanks must be original and in stock location. If area where gas tank is located is rusted through, a fuel cell is allowed in its placed. Shields may be installed under or around gas tanks. Rupture of gas tank and or loss of fuel will require immediate BLACK FLAG.
- Batteries may be located in a securely fastened, covered plastic or rubber container.
- All plastic grills must be removed or replaced with screen mesh. Headlights, taillights, and their trim must be removed. All outer trim must also be removed.
- ONE FIRE EXTINGUISHER PER VEHICLE MOUNTED SECURELY TO THE FLOORBOARD IS MANDATORY!
- ALL airbag sensors must be unplugged or remove airbags.
- ENGINE CLAIM: After 3 wins, the engine and computer can be bought by other Enduro drivers or track for $500. If you refuse, you will lose your points for the year.
- CAR NUMBERS: The front doors will be used to paint the car number. Number must be a minimum of 18” tall and painted with bright contrasting color. Car number and starting position will be determined by pill pull. BRING YOUR OWN PAINT! If your number is not clearly readable from track tower, your car will NOT be scored.
- WHEELS: Stock steel or original equipment aluminum wheels only.
- SUSPENSION: Suspension parts must remain absolutely stock for that make and model car. NO spacers, lumber or chains may be used to alter stock suspension of that car.
- TIRES: MUST BE DOT LEGAL TIRES. NO gumball tires. NO “DOT” stamped racing tires. NO all-terrain tires. NO mud tires. NO treated tires. NO winter tires. NO STAGGERING OF TIRES. ALL TIRES MUST BE THE SAME SIZE.
- FLAT TIRES: You will be allowed two spare tires for flats. All changes will be made in the pit area.
- WEIGHT: NO additional weight may be added to the car.
- ENGINE: The engines must be strictly stock for the make and model and in the original motor mounts. NO aftermarket external oil coolers. A/C and heat components, as well as smog equipment, may be removed. Catalytic converters are permitted to be removed. Original or stock replacement exhaust system. NO aftermarket headers are permitted.
- EXHAUST: Exhaust must exit behind driver
- TRANSMISSION: Stock transmission and rear end only. NO aftermarket external oil coolers.
- RADIATORS: ONLY one radiator can be used. Radiator must remain in original position. NO coolant or gas lines in the driver area of car. NO ANTI-FREEZE PERMITTED
- STARTING POSITION: This will be determined by pill draw. The number you draw will be your car number that will be painted on the front doors of your vehicle.
- MISCELLANEOUS: FULL-FACE HELMET REQUIRED
ALL RULES OR ANY INTERPRETATION THEREOF WILL BE DETERMINED BY TRACK OFFICIALS. ALL OFFICIALS HAVE THE RIGHT TO CHECK YOUR CAR AT ANY TIME, FOR ANY REASON. ALL TRACK DECISIONS ARE FINALS. RULES ARE SUBJECT TO CHANGE WITHOUT NOTIFICATION.
QUESTIONS: Kevin Johnson (814) 310-1102
Competitive racing can result in injury and/or death to the participant. No expressed or implied warranty of safety shall result from publication of or compliance with these rules and/or regulations. The rules and regulations ar
|
LMS |
MODIFIEDS |
SEMI-LATE |
PURE STOCK |
4 CYL |
|
|
|
|
|
|
|
1000 |
750 |
425 |
275 |
225 |
|
550 |
350 |
250 |
175 |
75 |
|
350 |
250 |
175 |
125 |
60 |
|
300 |
200 |
150 |
100 |
50 |
|
250 |
175 |
125 |
90 |
40 |
|
200 |
150 |
100 |
80 |
30 |
|
175 |
140 |
90 |
70 |
30 |
|
160 |
130 |
85 |
60 |
30 |
|
150 |
120 |
80 |
55 |
30 |
|
140 |
110 |
75 |
55 |
30 |
|
130 |
100 |
70 |
50 |
30 |
|
120 |
90 |
65 |
50 |
30 |
|
115 |
85 |
60 |
50 |
30 |
|
110 |
80 |
60 |
50 |
30 |
|
105 |
75 |
60 |
50 |
30 |
|
100 |
75 |
60 |
45 |
30 |
|
100 |
75 |
60 |
45 |
30 |
|
100 |
75 |
60 |
45 |
30 |
|
100 |
75 |
60 |
45 |
30 |
|
100 |
75 |
60 |
45 |
30 |
|
100 |
75 |
60 |
45 |
30 |
|
100 |
75 |
60 |
45 |
30 |
|
100 |
75 |
60 |
45 |
30 |
|
100 |
75 |
60 |
45 |
30 |
|
100 |
75 |
60 |
45 |
30 |